Relay.



o. G. ASHLEY.

RELAY.

APPLIUATIOH FILED Nov. 1e. 190s. 990,188. Patented Apr.18,1911.

' 2 SHEETS-Bmpr 1.

C. G. ASHLEY.

RELAY.

LPPLIUATION FILED 11011.19, 19

' Patented Apr. 18, 1911.

SHE T EET 2.

M\m.\ QN m UNITED STATI-1s .PATENT carica.

cuantas G. ASHLEY, or carence, ILLINoIs anni.

Patented Apr. 18, 1911.`

This application filed November 19,

1908. Serial No. 463,358.

T o all 'whom it may concern.'-

Be it known that I, CHARLES G. ASHLEY, a citizen of the United States ofAmerica, and a resident of Chicago,'county of Cook, and State "ofIllinois, have invented a new anduseful Improvement in Relays, of whichthe following 1s a specication.

My inventlon relates to a method of and apparatus for propagatingelectrical waves.`

The device of my invention may be elnployed in space communicationcommonly known .as Wireless transmission and intele hony as commerciallypracticed.

y invention is serviceable in increasing the amplitude of electricalwaves, when it is physically associated with the initial trans; -mittingstation, crwhere the invention is practiced at a point between stations.

' The device of my invention may be said to constitute a relay, theinitiall -produced electrical waves being amplified y means of theinvention, whether the" device of the invention is located at thetransmitting sta- I t tion or at some point intermediate betweenstations.

In racticing my invention, I employ two circuits themselves out ofinductive relation. f g

Where the apparatus is to be used purelyr as a transmitting relaydevice, or a one-way service is to be obtained, current impressed uponone of these circuits is,"by means of the instrumentality hereinafter to'be set forth, impressed upon the other circuit so as to produce in thelatter circuit wave forms corresponding to the wave forms in the firstcircuit 'but with increasedY amplitude.l

Where the device is to be used as a relay in a long distance telephoneline such as are now commonly in use, either of the aforesaid circuitsmay, through the said agency here- 66 ing from' either of twoconnected-station abl su divided in'toa'number of co inafter to bespecified, have current initially impressed upon it to be reproduced .inthe companion circuit with wave formsp'orrespending to the Wave forms-inthe -ir'npress-V ing circuit, but of greater 'ani litude.' A

have produced a successful) repeate'rll that may be used to Vamplify thecurrents emanata Each of the aforesaid circuits es windin and each ofthe circuit, the coils being wound in directions, to produce alternatepolarity, the adjacent' coils in each circuit being oppositely wound.These coils are so physically disposed with respect to each other thatthey willI not effeet inductive relation between the two circuits, asupplemental agency being required to effect telephonie or transmissionunion between the circuits, and 'it will thus be clear that the'twocircuits are not in direct inducv tive relatiom A moving inductor commonto all of the coils of both circuits is placed .in close range of saidcoils, so that on the occasion of the magnetic fields at the coils,fieldsl of eddy currents are set up in the inductor. If, for example,telephonie current is set up in one of the circuits, eddy currentsresultin the inductor corresponding to said 'telephonie currents, byreason of the coils in the circuit'in which the tele honic currents areinitially s'et u The edd)y currents thus iset up `orf=1nduce in theinductor underlie the coils in the circuit into which the telephoniccurrent is to be relayed, and the current is induced from theinductor'into these moving inductor, which eddy currents-underlie thewindings or coils in the circuit companion to the transmitting circuit uon which'thewaveform current 1s im resse at ater amplitude, theinductor, w en movals4 ma. constituting the a ency that causes-the eddycurrentsin'the in uctor to act as inducngcurrents with respect to thatcircuit which' is to receive theiamplifed wave .form currents. As thecoils o f the two circuits are interleaved or alternated, inA longldistance telephony, either link in the telephone circuit thus united bythe inductor -and the coils 'may' constitute the transmitting cir- 1 fed sy*- mea-eze v tion. Fig. 2 is a vertical sectional view therethefaces of the x form of a disk are normally noeddy currents in theinductor, these only being occasioned when a telephone circuit issubject to telephonie current.

In another embodiment of the invention' the core of eachv coil may bepermanently magnetized, either by an external battery or adheringly,these cores then producing eddy currents in the inductor which aremodified bythe wave form current received by the device,

This application is a continuation of my a plication filed January 10,'1906, Serial o. 295,486, which was on January 21, 1907, passed forissue and became forfeited for non-payment of the linal fee.

I will explain my invention more fully by reference to the accompanyingdrawings, showing the preferred embodiment thereof, in which. 'f pFigure 1 is. aside elevationof a device constructed in accordance withthe invenof. i Fig. 3 is a view in elevation with several of the partsbroken away to reveal certain internal Acharacteristics of theapparatus.Fi 4. illustrates the device of my invention ocated at a transmittin aportion only of the coils being s own for the sake of illustration. Fig.5 shows a telephone' line with the` device of my invenpion included atan intermediate point in the Like parts are indicated by similarcharcters of reference throughout the different gures.

Referring rst more :particularly to Figs. 1,2 and '53, the rotor orinductor-lis composed !of suitable'metal, copper beingpreferred. This-rtor or inductor presents to Aeach of the of metal .which is ata'-uniform distance from poles,so that therewill be no iuctuation o-.thee ddy currents in the inductor-.due to the structure andarrangement of the inductor, and is desirably'f'mfthe one-fourth 4inches1n' diameter, though Ido not wish tobe' to the roportions illustrated.The inductor is rigidly mounted upon a shaft 2, to which shaft issecured a pulley 3. that drives the shaft. The shaft finds bearings int-he non-magnetic caps 4, desirabl formed ofbrass', collars 5 beingprovide uponthe shaft 2 to-conine the inductor 1 to a uniform plane ofrotation. The brass caps 4 are recessed on their interiors at their toreceive rings 6 of 'suitable'magnetie material, as verysft iron, theserings being secured to the caps screws 7. These rings 6.are providedinsetting polar rejections 8-9 that are desirablyntegrally formed therin The inductor is interposed between the es 8 belonging to one ringGand the po es 9.

station,

poles atlallftimesa uniform mass,

practice, about three and' 4 b wat belonging tothe companion ring 6. Theouter peripheral portions of the rings 6 are grooved on their innerfaces vto receive a yoke ring 10, also desirably composed of very softiron. The poles 8 direct-lyiface -t-he poles 9, each ole 8 and itscompanion pole 9 being co-axlal; the inductor 1 is thus enveloped by asource of magnetizablc systems, each comprising a pole 8, the'pole 9,companion to the pole 8, the rings '6, and the ring '10, theelements6,10 being coinmon to all of the magnetic systems, while each pair ofelements 8 9 is individual to the magnetic system. The polar portions8-9 receive a single section of the magnetizing winding, this sectionconstitutingf'a coil 11, that is subdivided into two partsother aboutthe pole piece 9, though I do not Wish to be limited to the particulardis` position of thiscoil. The faces of the polar portions 8 9 opposedto the disk 1,- are of unlike polarity when current is passing throughthe coil surrounding'or associated with-a set of polar portions 8 9.Referring now more particularly to Fig. 5, the relative arrangement ofthe coils 11 will be explained. A telephone line unites two substations,A-B, that may be associated with the line in any suitable way wellunderstood b those skilled in the-art, thc illustration c osenbeingsimply taken to make the operation of the invention clearlyunderstood. Said stations A-.B may be equipped with telephonie apparatusof any well known or suitable construction and arrangement. Assumingtelephonic apparatus to be at said stations AB, the telehonictransmitter 12 at each station may he included in circuit with a sourceof energizin I of an in uction coil, the' secondary 15 of "which lcoilis included directly in the line and in circuit with a telephonereceiver 16. 'The telephone line includes two circuits 17.-'18 that arenot directly inductivel associated at the relay but which depen fortheir telephonie relation upon the moving inductor. The circuit 17includes one set of coils lland the circuit 18 includes another set ofcoils 11', the coils of one circuit being linterposed between the coils-of the other circuit, each coil of one circuit being followedimmediately by the coil of the other circuit, whereby these coils arealternated. The conti nous coils 11 in the same circuit are woun in oposite directions, whereby the interposedl colls of the companion circuitvare subject to equal and opposing'. in-

ducedpressures, wherebl .these latter coils have no current induce inthem, so that,

' 17-18 are not in direct inductive relation, th'eeils of one circuithaving current induced in them by reason of current flowing current 13and the primary 14 as I haveV hitherto stated, the two circuitsoneplaced. around the pole piece 8 and the through the coils of the othercircuit by Way of the inductor 1, in' Which eddy currents are.genera-ted, that constitute the inducing currents that cause theoccurrence of wave form currents in the circuit companion to the circuitthat receives the initial Wave form currents. Thus, the coils 11 thatare in the initiating circuit have differential effect upon the coilsthat are in the companion circuit, whereby there is no induction fromone circuit directly to the other, the element'l constituting thevehicle for causing the-'currents in one circuit to occasion currents inthe other circuit, this result being only e'fl'ected when said vehicle 1is in operation. It will thus be seen that I have provided in each ofthe circuits 17H18 a winding including a plurality of coils, the coilsof the different circuits being so inter related that the tendency forinduction be` tween a coil of one circuit and an adjacent coil of theother circuit is neutralized by the opposing effect of an adjacent coilof the first circuit upon said coil of the second circuit, the lattercoil being interposed between the former two. It will also be observedthat thc coils connected with the initiating circuit coperate with a'moving inductor toset up in the inductor eddy currents, and 'that theseeddy currents are in inductive relation to the coils of the circuit intowhich phone circuit in any preferred way. It is,

not thought necessary to illustrate the loca.-

tions o f the edd currents in the disk l, as

such location be manifest to one skilled4 in the art.

It is obvious.4 that the geographical location of the relay with"respectto the stations 'equipment.

I cally a. substation equipment including,.for

at the ends of the circuit does not modify the law of o eration of therelay. This g coil of the same. circuitshould preferably l be the same,in order to prevent the direct is illustrate in Fig. 4, Where the relaylocated at the same place with Inl Fig. '4 I have illustrateddiagrammatiexample, atelephone transmitter 12 in local circultWith-abattery V13 and the primary 14 of an induction coil. A circuitforthe relay corresponding to either of the circuits 17- 18, sa circuit417, includes a number of coils 11, W fle the interposedlcoilof thecompanion circuit 23 connected with the termi- -na1s,24, that areadapted for connection wi-th,A

the terminals 25 that' complete the circuit 23.

-' The .terminals 25 mayzi-nciudeanymsuiabq 'form of propagatinginstrumentalit as the winding 26 of 'an induction source o Winding 26may constitute thc primary of, an induction coil, the secondary 27 ofwhich is connected in any suitable form of circuit for the pro agationof telephone currents.

I have il ustrated a WirelessV apparatus in association with the coil27, but, obviously, my invention is not limited to this association. Inthe Wireless apparatus illustrated, I have shown the Well-known aerialconductor 28 and associate partsthat arc. well understood by thoseskilled in the art. and need not be further described.

In Fig. 4 I have illustrated only a fraction of the coils 11. It isunderstood that 'these coils are preferably arranged in a comcreasedamplitude, the number of coils l1 in the circuit 23 might be reduced toone, and the number of coils 1l 'in the'circuit 17 might be reduced totwo, one on each side of the former coil, though, as stated, I preferthe arrangements illustrated in Figs. 1 to 3, inclusive.

In Fi 4 I include a battery or oth'er direct current 29 which causes apermanent magnetization of the cores surrounded bythe coils 11. Waveform current caused by the transmitter 12 is superimposed upon thecurrent furnished by the source 29 so as to modify the flux of the coresof said coils to produce the action that has hitherto been described. l

I have illustrated the coilsll of each sct as bein connected in seriesto produce an accumu ative effect, but I do not wish to be limited tothis precise way of connecting Vthe coils. I prefer, even .in the formshown in Fig. 4, to make 'the resistance, the wire of the coils 11', andthe number of turns ot said wire 'the same, but this condition can bevaried according to engineering practice as dcsired. The number of turnsof wire in each fthe coils 11 are maintained stationar but I do not Wish'to be limited to this ciaracteristic because all that is desired isrelative movement between said coils and inductor.

While the `pole ieces 8 9 belongin to each coil 11 a're ustrated-asbeing united by a yoke 'ring o f magnetic material common to all of thepole pieces, I do not wish to be the inductor,lwhich eddy currents arecaused limited to this arrangement.

' Having thus described my invention, what I claim as new and desire tosecure by United States Letters Patent is:

inductor for and movable with respect to.

.said windings, one winding in coperation .other winding.

with the inductor eifecting eddy currents in the inductor, which eddycurrents are caused to be in primary inductive relation with the 2. Aninstrument for increasing the ainplitude of wave form current, includingtwo windings, for connection in diierent circuits, and an inductormovable'with respect to said windings, each of said windings beingdivided into a plurality of coils, the

l coils of one winding being alternated with l respect to theA coils-ofthe other winding, the v,coils of one winding acting oppositely to eachother upon the adjacentcoils of the companion winding, one winding in coeration with the inductor eiiecting eddy currents in the inductor, whichedd currents are caused to be in primary in uctive relation with theother winding.

3. An instrument for increasing the amy plitude of wave-.form current,including two windings for connection in different cir` cuits, and aninductor-.movable with respect to said windings, one of said windingsincluding a number of coils, said coils acting oppositely with res ectto each other upon the'remalning win ing, one winding in-cooperationwith the inductor effectin eddy currents sin' the inductor,which ed currents are caused to be in primary in uctive relation withthe other-winding.

V4f.v An instrument for increasing -the amplitude of wave form current,includingl two .windings directly out of inductiveLrelation forconnection in different circuits, an in- .'.ductor for andmovablewith-respect to said windings, one winding in coperation with theinductor eifecting eddy currents in the inductor, which eddycurrents-are caused to be in primary inductive relation with the otherwinding, and magnetizable core por tionsfor said coils. n

5 An instrument for increasing the amplitude. of wave form current,including two windings for connection indifferent circults, an inductormovable with respect to said `windings, each of said windings being4'divided vinto a plurality of coils, vthe coils offene winding. beingalternated with respect to the coilsof theother winding, fthe coils'-ofone winding acting oppositely to each other upon t l1e adjac ent.coils of the companio'n winding, one'winding in coperation with theinductor effecting eddy currents -rentsin the inductor, which e to be inprimary inductive relation vwith the other winding, and magnetizabl'ecore p0rtions for said coils.

. 6. An instrument for increasing the arnplitude of wave form current,including two windings for connection in diferent circuits an inductormovable 'with' respect to sai windings, one of said windings including anumber of coils, said coils acting oppositely with respect to each otherupon the remaining winding, vone winding in coperation with theinductoreffecting eddy cury currents are caused to be in primary inductiverelation with the' other winding,and' magnetizable core portions forsaid lcoils. .v

7. An instrument for increasing the ainplitude of wave form current,including two windings directly out ofinductive relation for connectionin di'erent circuits;l aninductor for and movable vwith respect to said`windings, one winding in coperation with the inductor effecting eddycurrents the inductor, which eddy currents are caused to be in primaryinductive relation with the other windin and magnetizable core portionsfor sai coils, each coil having two such magnetizable core portions,between which the inductor is disposed,-

8. An instrument for lncreaslng theam- .plitude of wave form current,includingtwo windings for connection indifferent circuits, an inductormovable with respect to sani windings, each of. said windings being d1-yv ided into a lurality of c ils, the coils of one winding eingalternated with respect to the coils of the other winding, the coilsV'of one winding acting op sitely to each other .upon the adjacent co softhe companion winding, one winding in coperation with the inductoreecting eddy currents in the be in primary inductive relation with` theother windin andmagnetizable core `portions for` .s ai coils, each coilhaving two such magnetizable core portions, between which theainductoris disposed. *9. An instrument for luci-'easing theamplitude of waveform current, including two windingsl l:for connection in differentcircuits, an inductor movable with 'respect tosaid windings, one'of saidwindin including a number of'coils, said coils acting oppositely withrespect t0 each other upon the remaining windin one winding incoperation with thc-in uctor effecting eddy currents in the inductor,which eddy currents are caused 'to be in primary inductive relation withthe other windin and magnetizab'le coreportions for sai coils, Veachcoil having two such magnetizable core portions, between Vwhichtheinductor isdisposed.

' 10. A4 instrument for increasing the amplitude of wave form current,including two inductor, whicheddy currentsare caused to4 ilo ser),

windings, one winding in cooperation with the inductor effecting eddycurrents in the inductor, which eddy currents are caused to he inprimary inductive relation with4 the other `windin and niagnetizablecore portions for sai coils, each coil having two such magnetizable coreportions, between which the inductor is disposed, the said two coreportions for each coil b'eing directly .united by magnetic material. l11. An instrument for increasing the amplitude of wave form current,including two windings, for connection in different circuits,Y

an inductor movable with respect to said windings, each of said windingsbeing divided into a plurality of coils, the coils of one winding beingalternated with respect to the coils of the other winding, the coils ofone winding acting oppositely to each other upon the adjacent coils ofthe companion winding, one winding in coperation with the inductoreecting eddy currents in the inductor, which eddy currents are caused tobe in primary inductive relation with the other Winding,and'magnetizable core portions for said coils, each coil having twosuchl `magnetizable core portions, between which:4 the inductor isdisposed, the saidtwo coreg? portions -for each coil being directlyunited= by magnetic material. i

12. VAn instrument for increasing the am plitude of wave form current,including two windings for connection in different cir-u cuits,an-finductor, movablewith res ect. to .said windings, one of saidwindings including a number of coils, said'coils acting oppo- .sitelywith respect to eachother upon the remaining' winding, one windinglineddy eration with the inductor effectin curi-entsin the inductor, whiched rents are caused to 'be in primary in uctive relation with the otherwindin and magnetiza-ble coreV portions for sai coils, each coil havingtwo such magnetizable core portions,l between which the 'inductor' isdisposed-,- the said two core portions for each coil being directlyunited by magnetic material. A

13.'.An instrument for increasing the amplitude'of wave form current,including two.

windings directly out of inductive relation for connection in differentcircuits', and an y ,inductor for and movable with respect to' onewinding coperatio'n said windin with the in -uctor effecting eddycurrentsin the-inductor, which eddy currents are caused to be in primaryinductive relation with the otherwinding, said inductor presentin to'each .of the poles at all times anni orin inass of metal which is at auniform dis.

tance from the Afaces ofthe poles, so that there will be no fluctuationeddy currents in the inductor, due tothe structure and arrangement ofthe inductor.

14. An instrument for increasingA the amplitude of wave form current,including two windings for connection in different cirto said windings,eachof said windings being divided into a plurality of coils, the coilsof one winding' bein alternated with respect to the coils of t e otherwinding, the coils ofone winding act-ing oppositely to each panionwinding, one winding in cooperation with the inductor effecting' eddycurrents in the inductor, which eddy currentsare caused to be invprimary .inductive relation with the 'other winding, said inductorpresenting to each of the oles at all times'a uniform mass of metall)which is at a uniform dista'nce from ythe faces of the' poles, so thatthere will be no fluctuation of the eddy currents in the inductor, dueto the structure and arrangement of the inductor.

15. An instrument forincreasing the aniplitiide of wave form current,including two windings for connection in di'erent cir' cuits, and4 aninductor movablewith respect to said windings-including a number ofcoils, `said coils acting oppositely with respect to leach other uponthe remaining winding, one iiiding in cooperation with the inductorffeliecting eddy currents in the inductor, which- 'eddy currents arecaused. to: be in primary inductive relation.A with the other winding,said inductor presenting to each of the poles is at a uniform distanceromthe faces of' 'the poles, so. that there will, be no fluctua- -tioiiof the eddy currents .in the inductor, due to the structure: and.arrangement of the 16.4 instrument for increasing the amplitude ofwave'form current, including two 'windings directly` out of inductiverelation, for connection di'erent circuits, an 1nductor for 'and movablewith respectto said windi .one winding in cooperation 'in' theinductor,- which eddy currents are caused to be in primary inductiverelation 'withthe other winding, and niagnetizable core portions forsaid coils, said inductor presenting to each of the poles atall timesauniformmass of metal which is at a uniso that there willlbe nofluctuation ofthe 'structure and; arrangement of the inductor.

17. An instrument-fr increasing the ami plitude of" wave `formcurrentin'cludmg two windings forv connection indifferent cirsaidwindings, each of said windings -bein divided into 'a plurality ofcoils, the coils o other upon the adjacent coils of'A thecomf formdistance romi-the faces of the poles,

eddy currents -in the inductor, Adueto the cuits, an indiictormovablewith respect to -one winding being; alternated with. rpe0 cuits, and aninductor movable with-respect y I atall times'a uniform mass-of metalwhich v with the 'in uctor e'ecting eddy currents i of one windingacting oppo'si to the coils of the other windin the coils tey to eachother upon theadja-cent coils of the companion winding, one winding incoperation with the inductor effecting eddy currents in the inductor,which eddy currents arecaused tobein primary inductive relationwith ,theother-winding, .and magnetizable core portions for said coils, saidinductor pre senting to each of the poles at all'tii'nes a uniform massof metal .whichis at a uniform distance from the faces of the poles, sothat there .Willbe no uctuation of the eddy currents in the inductor,due to the 'structure and arrangement of the inductor.

18. An instrument for increasing' the amplitude of wave form current,including two windings, lfor connection in dili'erent" circuits, aninductor movable with respect to said windings, one of said windingsinclud ing a number of coils, said coils acting op.- positively` withrespect' to each other upon the remainin ivindin one winding in coperfation wit "j the in uctoi' eifectin eddy currents inthe inductor, whichedy currents are caused to be in primary inductive relation with theother winding, and' magnetizable core -portions for said coils, saidinductor presentingto each of the poles at all times a uniform-massofsmetal whichis at a uni-- form distance from the faces of the poles,

so that there will be no fluctuation of the Teddy currents in theinductor, 'diie' to Ithe structure and arrangement of the inductor.

19.` An instrument for increasing the aniplitude of wave form current,including two windings, directly out of inductive relation, for.connection in different circuits, an viiiductor. yfor and4v movablewith respect to said 4o the inductor effecting eddy currents in thewindings, one winding in coperation with inductor, which eddy 4currentsare caused to befin primary inductive relation with the other winding,and magnetizable core portions for said coils, each coil having two suchmagnetizable core portions between` which the inductor is disposed, saidinductor presenting to'eachof the poles at all times a uniform mass ofmetal' which is at al uniform distance from the faces of the oles, s0*

that there will be no fluctuation of t e eddy,

currents the inductor, due to the structure and arrangement of theinductor.

20'. An' instrument for increasing the amplitude of wave form current,including twof windings,'for connection in different circuits an iii`ductor f'-movable-with` respect to windings, each ofvsaid windingsbeingsdivided into-a luralit of coils, the co' `of one' windingv eingalternated with res ect to the coils of the other winding, the coi slofone windingacting oppositely to each other upon thevadjacentcoils of;the'companion'- winding, one-winding in cooperation with the inductoreffecting eddy currents in thei an inductor movable with inductor, whicheddy currents are caused to be in primary inductive relation with theother windin i, and magnetizable core -portions for said coils, eachcoil having two such magnetizable core portions, between 'whichtheinductor is disposed, said inductor presenting to each of the polesat all times a uniform mass of metal which is at a uniformdistancefrom-the faces of the that there will be no fluctuation of t p oles, soe eddycurrents inthe inductor, due to the structure and arran ementofthe inductor. f

21. instrument for increasing the amplitude of wave windings, forconnection in different circuitsi windings, number of coils, said coilswith respect to each other upon the remain; ing windin with the ingu theinductor,

one of said windings including `a which eddy currents are caused onewinding in coperatioa c'tor eifecting eddy currents in f form current,including two 80 an inductor movable with respect tosai actingoppositely I to be in primary inductive relation with the other winding,and 'magnetizablelcore por- 4 tions for said' coils, each, co'lhavingtwo such magnetizable core po ions between which the 'inductor isdisposed, said inductor 'presenting to'eaeh of the polesV at all times auniform mass of metal which is at a. uniform distance from the facesofthe' poles, so that there will be no fluctuation of the eddy cur- 4rentsin 'the inductor, due to the structure and arrangement of the inductor.22. An instrument lfor for connection in diictor for and movable withrespect windings, one winding in cooperation with different circuits, anin- 4the inductor eiecting eddy currents in the inductor', which eddycurrents are caused to creasing the a`m vplitude of wave form current,including two windings, directly out of'inductive relation,

to said be 'iii primary inductive relation with the other windin andsuch magnetizable 4core portions, between which the inductor is sposed,the said two core ortions for each coil being directly united) bymagnetic 'material, said inductor presenting'to each of the, les at alltines a uniformmass of metal which is at a. uniform distance from thethere will be no fluctuation of the eddy curmagnetizable core por-l'tions for sail coils, each coil having two faces of the poles, s o thatrents inthe inductor, due to the structureA l panonwnding one winding incoperation different circuits,` respect to said with the inductoreffecting eddy currents in the inductor, which eddy currents are causedto be in primary inductive relation with the other windin landmagnetizable core portions for said coils, each coil having two suchmagnetizable core' portions, between' which the inductor is disposed,the said two remainin unite windings, for connection4 in different cir'cuits, an inductor movable with respect to said windings, one of saidwindings Includ-i ing a number of coils, said: coils acting oppositelywith respect to each other upon the winding, one winding in coperationwith the inductor etfeetin eddy currents in the inductor, which ed ycurrents are caused to be in primary inductive rela- `tion withthe otherwinding, and magnetizable core portions for said coils, each coil havingtwo such magnetizable core portions, between which the inductor isdisposed, the

said two core portions foreach coil bein U directly united by magnetic`material, said i linductor presenting to each of the 4poles at all timesa uniform mass of metal which is at a uniform distance from the faces ofthe poles, so that there will be no fiuctuation of the eddycurrents inthe inductor, due to the 'structure and arrangement of the inductor.

25. An instrument for increasing the am-v plitude of wave form current,including two windings, for connection 1n different circuits, and aninductor for and movable with respect to said windings, one winding incooperation with the inductor efiectin eddy currents in the inductor,,which ed y currents are caused to be in .pnimary inductive relationwith the other 26. An instrument forincreasing the aml 1 p litudeofpwave form current, including two windings, -for connection indifferent circuits, an inductor for and movable with respect to saidwindings, one winding in cooperationgwith the inductor efectineddyrents. are caused to be in primary in ctive relation with the otherwinding, and magnet izable core port-ions for .said coils.

` plis-121e wxndlngs, for connection in different circults, an' inductorfor' and movable'yith re- V operation "withA the in 27, An instrumentfor increasing the amof wave form current, including two spect to saidwindings one winding in coductor etectino' eddy currents 1n theinductor, which jedd:

6111- rents are caused to be primary in u ctivel tions, between whichrelation with the other winding, and magnetizable core portions forsaid, coils, each c'ol having two such magnetizable core portionsbetween which the inductor is disposed.

28. An instrument for increasing the am# plitude of wave form current,including two windings, `for connection in diiferentfcir@ cuits, aninductor for and movable with respect to sald wlndlngs, one windingY 1nc0- -operation with the inductor efectin Veddy currents'in the inductor,whiched cur'- rents are caused to be in rimary in uctiverelation withthe other windin andxmagnetizable core portions for sai coils, each coilhaving two such magnetizable core portions, betweenwhich the inductor isdissop posed, the said two core portions for each@ .rents are caused tobe in 'primary in uctive .relation with 4the otherwinding, said 1nductorpresenting to each of the poles at all times a uniform mass of metalwhich is at a uniform distance from the faces of the...

poles, so 'that there will bei no fluctuation.

of the eddy currents in the inductor due to the structure andarrangement of the inductor.-

30. An instrument for increasing the amplitude of wave form current,including two windings, for connection in diierent circuits, an inductorfor and movable with respect to said windings ,one winding in cooperation with the inductor etfectin eddy currents in the inductor,which ed y currents are caused to be 4in primary inductive relation withthe other windin and magnetizable core portions for sai coilssaldinductor present-ing to' each of the poles at all times a uniform massof metal which is at a uniform distance from the faces of the poles, sothat there will'be no iluctuationof the eddy currentsln the inductor,due to the structure and arrangement of the 1nductn ,y .-31: instrumentfor increasing the amplitude of wave form current, including. two

windings, fori." connection' in diffferent circuits, an inductor for andmovable Awithrespect to said windingsone winding in cooperation with'the inductor eli'ectin eddy currents in the inductor, which ed currentsare caused to be in primary in' uctive relation'with the' other windinand magnetizuble core portions 4for sai coils, each coil having two such-mgnetlzable core pore inductor-1s disposed, said .inductor presentingto each of the poles at' all times a uniform mass of 4metal which is ata uniform distance from the faces of the cles, so that there will be noiuctuation of the eddy currents in the inductor, due tothe structure andarrangement o f the inductor.

.32. An instrument for increasing the amplitude of wave form current,including two windings, for connection in dil'erent circuits, aninductor for and movable with re# spect to said windings, one winding incooperation with the inductor eect'n eddy currents in the inductor,which edgy .currents are caused to be in primary inductivev relationwith the other winding, and magnetizable core portions for said coils,each coil having two such magnetizable co're portions, between which theinductor fis disposed, the said two core portions for each. coil beingdirectly united by magnetic ma` terial, said inductor presenting to eachof i the poles at all times a. uniform massv of metal which is atanniform distance from the faces of the poles, so that there. will-be noiuctuation of the eddy currents in the inductor, due to -tlie structureand arrangement of the inductor. A

33. An instrument for increasing the am# plitude of wave form current,including .two windings, andv an inductorfor and movable with respecttosaid windin "s, one-winding in coperationf with the-in uctor effectingeddycurrents in the inductor,- which Yeddy currents are caused to 'be inprimary ind-uctive relation with the other winding.

"34. An instrument forl increasing' the arnplitude of wave form current,including. two

windings, and an inductor movablewith respect to s aid windings, each of said windings beingdivided into a pluralityof coils, the coils of onewinding being' alternated with respect to the coilsl of the' other`wind.v ing, the coils=of one winding acting oppositely to` each other.upon the adjacent coils of the companionwinding, one winding" incoperation with the inductor effecting eddy currents in .the inductor,which edd cnrrents are caused-to be in primary in uctive relation withthe other winding.-

35. An' instrument for increasing the am.

. plitude of wave form current, including two windings, and an inductormovable with respect to said windin one of Said windings includi'ng' anum r of coils,. said coils acting oppositely with respect to each otherupon the'remainin winding, one windin in coperation with t e inductoreecting edy currents in the inductor, which'.edd currents are caused tobe in primary in uctive relation with the other winding.

36. An instrument for increasing the am plitude or wa-ve form current,including two windings, an inductor for and movable with respect to saidwindings, one'winding in co?" ing divided into a' plurality of coils,

of one winding acting opposite operation with the "in vcurrents 'in theinductor,

windings, respect to said windings,

rents are caused to be relation with the other windlllfld 313%;-

coils, eac

plitude of waveform current, including two movable with respect ',Jeachof? said windingsbethe .coils operation with the inductor eiectin eddycurrents in the inductor, which edt? currents are caused to be in rimaryuctive relation to the other winding, and magnetizable core portions forsaid coils. 37. An instrument'for increasing the amplitude of wave form'current, including two windings, an inductor movable with respect tosaidwindings, each of said windings bethe coils of one windin beingalternated with respect to the coils o ,the .other winding,the coils yto each other upon. the adjacent` coils of the conipanion winding, onewinding in coperation' with the inductoreecting eddy currents in theinductor, which eddy currents are causedto be in primary inductive otherwinding, and magnetizable core portionsfor said coils.

" 38. An instrument for increasing the amplitude of wave form current,including two windings, an inductor movable with respect to saidwindings, one o f said 'windings m-. cluding a number of coils,said-coils acting oppositely with'respect-to each othgF-.uponlone-winding 'm cofl' the remaining wmdi uctor eiectin eddyj rentsarecaused .to be in-primary inductive relation with the .other windin andmag netizable core portions for sai coils.

39'- An'instrumentforincreasing the arnplitude. of wave form current,including two aninductor for and mgvable with Y operation with theinductor eiecting eddy currents in the inductor; whiched y in primaryinductive t netizable core portions for sai c'oil having two suchmagnetizable core porf relation with the A which.l ed y cur'- vico onewinding in-'cotions, between which the inductor is diss..

posed. f f v f An instrument for .increasing the amwindings, an inductorto said windings l ing divided into a plurality of coils, of one windinbeing alternated with respect' to the coils o the otherv the coils ofone winding acting opposite other upon the adjacent coils of thecoinpanion winding, one winding in coperatioii with the inductoreiecting veddy currents 1n the inductor, which eddy currents are causedto be in primary inductive relation with the other windin andmagnetizable core portions for sai coils, each coil having two suchmagnetizable lcore portions, between which'the inductor is disposed.

41, An instrument for increasing amplitude of wave form currentincluding two windings, an inductor movable with respect to saidwindings, one ofsaid windingsin-v currents in the inductor, which ed 3unite cluding a number of coils, said coils acting oppositely with resct to each o therupon the remaining wint ing, one winding 1n cooperationwith the inductor effectmgeddy y currents .are caused to be in primaryin uetive relation with the other winding, and magnetizablc coreportions for said coils, each coil having two'such magnetizable coreportions, between which the inductor is disposed. 1

42. An instrument for increasing the amplitude of wave form current,including two windings, an inductor for and movable with respect to saidwindings,`one winding in cooperation with the inductor effecting eddycurrents in the inductor, which eddy currents are caused to be inprimaryinductivo relation with thc other winding, and magnetizable coreportions for said coils, each coil having two such magnetizable coreportions, between which the inductor is disposed, the said4 two coreportions for each .coil being directly united by magnetic inatcrial.

43, .-'tii instrument for increasing the aniplitnde of wave formcurrent, including twov windings, an indnctor tnovable with respect tosaid windings, each of said windings bcing divided into a Vplurality ofcoils, the coils of one winding being alternated with respect to thecoils of the other winding, the coils of one winding acting oppositclyto cach other upon the adjacent coils of tlic companion winding, onewinding in coperation with the inductor effectin eddy currents in theinductor, which ed y currents are caused to bc-in primaryinductive'relation with the other winding, and magnetizable coreportions for said coils, each coil having two such magnetizable coreportions, between which the inductor is disposed, the said two coreportions for each coil being directly united by magnetic material.,

44. An instrumentfor increasing the ainplitude of wave form current,including two windings, an inductor movable with respect to saidwindings, one of the said windings including a number of coils, saidcoils acting oppositely with respect.4 to each other upon the remainingwinding, one winding in coperation with the inductor effecting eddyciii'- irnts in the induetor, which eddy currents are caused to be inprimary inductive relation 5 with thc other winding, and magnetizablecore portions for said coils, each coil having two such magnetizablecore portions, between which the indnctor is disposed, the said two core(portions for each coil being directly by magnetic material.

45. An instrument for increasing the am; plitude of Wave form current.including two windingsand an inductor for and movable with respect tosaid windings, one winding Veration with the inductor effecting ed yeddy currents in the inductor, which eddy currents are caused to be inprimary inductive relation with the other winding, said inductorpresenting to each of the poles af 'all times a uniform mass of-metalwhich is at a uniform distance from the faces of the poles, s o thatthere will be no fluctuation of coils of one winding acting oppositelyto each other upon the adjacent coilsof the companion winding, onewinding in co currents in the indiictor, which ed cur* rents are causedto be in primary inductive relation with the other winding, saidinductor presenting to each of the poles at all times a uniform mass ofmetal which is at a' uniform distance fiom the face of the poles, sothat. there will be no fluctuation of the eddy currents in the inductor,due to the structure 'and arrangement of the induetor.

times a uniform mass of metal which is at a uniform distance from thefaces of the poles, so that there will be no fiuctuation of the eddycurrents in the inductor, due to the structure and arrangement of theinduetor.

48. An instrument for increasing the amplitude of wave form current`including two windings, an induetor for and movablel with respect tosaid windings. one winding in cooperation with the inductor effectingeddy currents in t-he indnctor, which eddy currents are caused to be inprimary inductive relation with the other winding. and magnetizable coreportions for said coils, said inductor presenting to each of the polesat all times a uniform mass of metal which is at a uniform distance fromthe faces of the' poles, so that. there will be no fluctuation of thceddy currents in the inductor, duc to the structure and arrangement ofthe induetor.

49. An instrument for increasing the amplitude of wave form current,including two windings, an inductor movable with respect in coperationwith the inducto'r effecting l to said windings, each of said windingsbeing divided into a plurality of coils, the coils of' one windin beingalternated with respect to the coils of the other winding, the

coils of one winding acting oppositely tol ductor presenting to each ofthe poles at all times a uniform mass of metal which is at a uniformdistance from the faces of the poles, so that there will be nofluctuation of the eddy current in the inductor, due to thc structureand arrangement of the inductor.

50. An instrument for increasing the amplitude of wave form current,including two windings, an inductor movable with respect to saidwindings, one of saidwindings including a number of coils, said coilsactlng oppositely with respectto each other upon the rcmaining winding,one winding in cooperation with the inductor effecting eddy currents inthe inductor, which eddy currents are caused 4 to be in primaryinductive relation with the other winding, and magnetizable corcportions for said coils, said inductor presenting to each of the polesat all times a uniform mass of metal which is at a uniform distance fromthe faces of the poles, so that there will be no fluctuation of the eddycurrents in the inductor, due to the structure and arrangementI of theinductor.

51. An instrument for increasing the amplitude of wave form current.including two windings, an inductor for and movable with respect to saidwindings, one winding in cooperation with the inductor'effecting eddycurrents in the inductor, which eddy currents are caused to be inprimary inductive relation with the other winding, and niagnetizablecore portions for said coils, each coil having two such magnetzable coreportions, between which the inductor is disposedpsaid inductorpresenting to each of the poles at all times a uniform mass of metalwhich is at a. uniform distance from the faces of the poles, so thatthere will be no fluctuation of the eddy currents in the inductor, dueto the structure and arrangement of the inductor.

52. An instrument for increasing the amplitude of wave form current,including two windings, an inductor movable with respect to saidwindings, each of said windings being divided into a plurality of coils,the coils of one winding being alternated with respect to the coils ofthe other winding, the coils of one winding acting oppositely to eachother upon the adjacent coils of the companion windin one winding incoperation wtih the inductor effecting eddy currents in the inductor,which eddy currents -are caused to be in primary inductive relation withthe other windin and magnetizablc core portions for sai coils, each coilha ving two such magnetizablecore portions between which the inductor isdisposed, said inductor presenting to each of the poles at all times auniform mass of metal which is at a uniform distance from the faces ofthe poles, so that there will be no fluctuation of the ,eddy currents inthe inductor, due to the structure and arrangement of the inductor.

58. An instrument for increasing the amplitude of wave form currentlincluding two windings, an inductor movable with respect to saidwindings, one of saidv windings including a number of coils, said coilsacting oppositely with respect to each other upon the remaining winding,one winding in co,- operation with the inductor effecting eddy currentsin the inductor, which edd currents are caused to be in primary inuctive relation with the other winding, and magnctizable core portionsfor said coils, each coil having two such magnetizable core portions`between which the inductor is disposed. said inductor presenting to eachof the poles at all times a uniform mass of metal which is at a uniformdistance from the-faces of the oles, so that there will be nofluctuation ofthe eddy currents in the inductor, due to the structurement of the inductor.

54. An instrument for increasing the amplitude of wave form current,including two windings, an inductor for and movable with respect to Saidwindings, one winding in cooperation with the inductor effecting eddycurrents in the inductor, which eddy currents are caused to be inprimary inductive relation with the other winding, and mafnetizable coreportions for said coils, cach coil having twosuch magnetizable coreporand arrange- 'tions. between which the inductor is disposed. the saidtwo core portions for each coil being directly united by magneticniaterial, said inductor presenting to each of the poles at all times auniform mass of metal which is at a uniform dist-ance from the faces ofthe poles, so that there will be no fluctuation of the eddy currents inthe inductor, due to the structure and arrangement of the inductor.

An instrument for increasing the amplitude of wave form current`vincluding two windings, an inductor movable with respect to saidwindings, each of said windings being divided vinto a plurality ofcoils, the coils of one winding being alternated with respect to thecoils of the other windin the coils of one winding acting oppositey toeach other upon the adjacent coils of the companion winding, one windingin coperation with Vthe inductor effecting eddy currents in theinductor, .which eddy currents are caused to be in primary inductiverela`- -inductor presenting to each of the tion with the other wind/ing,and magnetizable core portions for said coils, each coil having two suchmugnetizable core portions, between which the inductor is disposed, thesaid two core portions for each coil bein directly united by magneticmaterial, sai

oles at all times a uniform distance from t e faces of the cles, so thatthere will be no fluctuation ofthe eddy currents in the inductor, due tothe structure and arrangement of the inductor.

56. An instrument for increasing the amplitude wave form current,including two windings, an induetor movable with respect tosaid'windings, one of said windings including a number of coils, saidcoils acting oppositely with res ect to each other upon the remainingwin ing, one winding in cooperation with the inductor effectin eddycurrents in the inductor, which ed y currents arc caused to be inprimary inductive relation with the other winding, and magnetizable coreportions for said coils, each coil having two such magnetizable coreport'ions, between which the indnctor is disposed, the said two coreport-ions for each coil being directly united by magnetic material, saidinductor presenting to each of the oles at all times a uniform mass ofmetall3 which is at a uniform distance from the faces of the poles, sothat there will he no fluctuation ofthe eddy currents in the inductor,due to the structure and arrangement of the inductor.

57. In an instrument for increasing the amplitude of wave form current,a set of coils adapted to carry the current to be arnplified; aconducting disk rotating near said coils, said coils and disk thusproducing eddy currents in said disk in response to current values insaid coils; and a second set of coils related to the eddy currents inthe disk as the secondary winding'of an induction coil is related to thecurrents of the primary winding of the induction coil.

58. In an instrument for increasing the am litude of wave form current,a set of coi s adapted to carry the current to be amplified; a conductindisk rotatin near said coils, said coils and disk thus pro ucing eddycurrents in said disk in response to current value in said coils; and asecond set of coils related to the eddy-currents in the disk as thesecondary coil of an induction coil is related to the 'currents of theprimary coil of the induction coil, said first set of coils and saidsecond set of coils being similar.

59. In an instrument for increasing the am litude of Wave form current,a set of coi s adapted to carry the current to be amplified; aconducting disk rotating near said coils, said coils and disk thusproducing eddy currents 1n said disk 1n response to current value 1nsaid coils; and a second set of coils related to the eddy currents inthe disk as the secondary coil of an induction coil is related to thecurrents of the primary coil of the induction coil, said first set ocoils and said second set of coils being similar, and being arrangednon-inductively each upon the other.

G0. In an instrument for increasing the amplitude of wave form current,a set ot' field coils; an armature, and a second set of coils positionedto have inductive relation to currents in said armature.

G1. In an instrument for increasing thc amplitude of Wave form current,means for producing corresponding currents of amplified value in amoving conductor; and means for transferring the energy of said currentselectro-magnetically to a stationary conductor.

G2. In an instrument for increasing =thc amplitude of wave form current`field coils; an armature; and inductive coils related inductivc-ly tocurrents in said armature produced by currents in said field coils.

(33. In an instrument for increasing thc amplitude of waveform current,a set of field coils; an armature; and a second set of coils positionedto have inductiverelation to currents in said armature, said two sets ofcoils being mechanically similar and electrically interchangeable.

64. In an instrument for increasing the amplitude of Wave form current.means for producing corresponding currents of amplified value in amoving conductor; and means for transferring the energy of Said currentselectro-magnetically to a stationary conductor, said two sets of coilsbeing mechanically similar and electrically interchangeable.

65. In an instrument for increasing the am plitnde of wave form current,field coils; an armature; and inductive coils related inductively tocurrents in said armature produced by currents in said field coils,saidtwo sets of coils being mechanically similar and electricallyinterchangeable.

G6. In an instrument for increasing the amplitude of Wave form current,a set of coils adapted to carry the current to be, amplified; aconductor moving near said coils, said coils and conductor thusproducing eddy currents in said conduct-or. 1n response to currentvalues in said coils; and a second set of coils related to the eddycurrents in the conductor as the secondary winding of an induction coilis related to the currents of the primary winding of the induction coil.

67. In an instrument for increasing the am litude of wave form current,a set of coi s adapted to carry the current to be amplified; a conductormoving near said coils,

set of coils related to tlie eddy currents iu the conductor as thesecondary coil of an induction coil is related to the currents of theprimary coil of the induction coil, said first set of`coils and saidsecond set of coils being similar.

(38. In an instrumentl for increasing the amplitude of wave formcurrent, a set of coils adapted to carry the current to be ainplified; aconductor moving near said coils, said coils and conductor thusproducing eddy currents in said conductor in response to current valuein said coils; and a second set of coils related to the eddy currents inthe conductor as the secondary coil of an induction coil is related tothe currents of the primary coil of the' induction coil, said first setof coils and said second set of coils beingr similar, and being arrangednon-inductively each upon the other.

G9. In an electrodynamic relay, a uniform mass of meta-l maintaininrelative motion with a field coil; and anot er coil in inductiverelation to the current in the uniform mass of metal; said two coilselectrically interchangeable and non-inductively associated in regard toeach other.

70. In an electrodynamic relay, a mass of metal maintaining relativemotion with a field coil;and another coil in inductive relation to thecurrent in the mass of metal, said two coils electricallyinterchangeable and non-inductively associated in regard to each other.

71. In an electrodyiiainic relay, means for maintaining continuouslyeddy currents in a mass of metal by relative motion between such metaland a field coil; a second coil out of direct inductive relation withsaid field coil but in inductive relation with an eddy currentin saidmass of metal.

72. In an electrodynamic relay, a field coil producing eddy currents ina uniform inductor maintaining relative motion with re gard to suchfield coil; and a second coil out of 'direct inductive relation withsaid field coil but in inductive relation with the eddy currents in theinductor.

73. In an electrodynamic relay, means for producing a plurality of eddycurrents in an armature of uniform mass maintaining relative motion withregard to a plurality of field coils; an equal number of similar coilsout of direct inductive relation with the first rfor establishing anelectromagneticall ductive couple with an electrodynamically named coilsbut in direct inductive relation with tlie eddy currents in saidarmature.

74. In an electrodyna mic relay, means for A rent, means for maintainingeddy currents in:

a mass of metal by elative motion between suoli metal, and a pluralityof field coils wound alternately clockwise and counterclockwise; asecond set of similarly wound coils, each disposed in direct effectiveinductive relation with the eddy current in t-he aforesaid mass ofmetal.

77. In an electrodynamic device for increasing the amplitude of waveform current, means for establishing a series of eddy currents ofalternate direction in a mass of metal maintaining relative motion witha plurality of field coils of alternate polarity; a second set ofsimilarly wound and connected coils each disposed in effective inductivcrelation with an eddy current in the 'aforesaid mass of metal.

78. In an electrodynamic device for increasing the amplitude -of waveform current, a. conductive mass, a field coil; and coils inducedcurrentin said conductive mass when said mass is maintainin relative motionwith reference to said eld coil, said field coil not forming anelectromagnetically inductive couple with the aforesaid coils.

Signed by me at Chicago, county of Cook and State of Illinois in thepresence of two witnesses.

CHARLES G. ASHLEY. lVitnesses:

DAvm S. HULFIsH, HARRJET L. SMITH.

Corrections n Letter s Patent No. 990,183

It is hereby certified that in Letters Patent No. 990,183, grunted April18, 1911,

l upon the application: of Charles` (l. Ashley, of Chicago, Illinois,for an improvement in ltelays, errors :tppen-r in the printedsperilicntion requiring correction as follows: Page 11, line S, afterthe word uniform, the words mms of metal wiz'c/t s ui a uniform shouldbe inserted, und same page, line 14, after the word ampliresld withtheseoorreetons therein that the saine may conform to the record ofy thecase in the Patent Oce.

Signed and sealed this 6th day of June, A. D., 1911.

C. C. BILLINGS, Acting Commissioner QJ" Patents.

[SEAL] l tilde, the word Qfshould be inserted; and that the said LettersPatent should be.

